BIOS/CMOS Problem

I am using Intel 845 GLAD motherboard with a 128 MB DDR 266MHz RAM. Setting the supervisory password only ( in the bios security menu ) is my preferable option. Recently I added another RAM of same specs. Now the problem is that the supervisory password is not getting saved in the CMOS, only the user password is being saved, which I don't want.

Removing the previous RAM, and plugging in the newer one only, is also not creating problems. I have tried with swapping RAMs in slots also, but in vain. Individually each is working fine, together they are creating problems.